Fakultät für Physik und Astronomie
STEPHEN PHILLIPS hostreviews.co.uk / UNSPLASH

Local quantum field theory in extreme environments

Peter Lowdon , Universität Frankfurt

Local quantum field theory (QFT) provides a framework for establishing the non-perturbative constraints imposed on finite-temperature correlation functions. In this talk I will discuss how the locality of fields has significant implications for the spectral properties of finite-temperature QFTs, in particular that the peak-broadening effects experienced by particle states can be directly extracted from imaginary-time correlation functions. As an application, I will discuss the calculation of the pion spectral function peak from Euclidean data.

Cold Quantum Coffee
24 May 2022, 16:15
Institut für Theoretische Physik, Phil16

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